Error on UO item properties page? Hit lower..

[Lord Kotan]

Hit Lower Attack - A successful hit with this weapon lowers the attack rating of the target by 25% for 10 seconds. There is no cap on HLA. HLA percentages are multiplied rather than added - for example, if you have two items, one with a 30% chance and one with a 50% chance, then that’s a 65% chance that the effect will fire on any given hit. The effect does not stack with itself, although additional effects will reset the duration.

Hit Lower Defense - A successful hit with this weapon lowers the defense rating of the target by 25% for 8 seconds against all attackers. There is no cap on HLD. HLD percentages are multiplied rather than added - for example, if you have two items, one with a 30% chance and one with a 50% chance, then that’s a 65% chance that the effect will fire on any given hit. The effect does not stack with itself, although additional effects will reset the duration.

.5 or 50%... times .3 or 30% is .15 or 15%.... So like with mace and shield glasses; is it multipling it? if so, a 50 weapon and 30 glasses give you only a 15% chance for hit lower defense; not a 65%.

 

[Jeremy]

It's worded poorly, but I'm not quite sure how to fix it. 50% x 30% - 15%, which is then added to the 50% to get 65%. Obviously adding more shouldn't lower your success rate.

(Suggestions on rephrasing are welcome!)

 

[Vexxed]

I always just thought of it as...


Out of 100 swings... 50% HLD will go off 50 times....
of the remaining 50 swings 30%HLD will go off 15 Times...

Grand Total of 65 Times HLD goes off for every 100 aka 65%

 

[Gildar]

"HLA percentages are evaluated sequentially, rather than added and evaluated simultaneously"?
"HLA percentages are not added together, but rather evaluated individually - for example, if you have two items, one with a 30% chance and one with a 50% chance, then that’s a 65% chance that the effect will fire on any given hit (the 'missing' 15% being the chance that both fire at the same time, which has the same impact as if only one of them fired)"?

 

[Lord Kotan]

I always just thought of it as...


Out of 100 swings... 50% HLD will go off 50 times....
of the remaining 50 swings 30%HLD will go off 15 Times...

Grand Total of 65 Times HLD goes off for every 100 aka 65%

=============================
Hit Lower Defense - A successful hit with this weapon lowers the defense rating of the target by 25% for 8 seconds against all attackers. There is no cap on HLD. HLD percentages are multiplied and added to the larger HLD number- for example, if you have two items, one with a 40% chance and one with a 30% chance, then that’s a 58% chance that the effect will fire on any given hit. (.4+(.4 X .3))*100%). The effect does not stack with itself, although additional effects will reset the duration. Another way to look at this is, out of 100 swings, if 40% HLD goes off, on the remaining 60 swings 30% will HLD for a total of 58 (40+18).

 

[Gildar]

(.4+(.4 X .3))*100%

That's not correct.
It's (.4+(.6 X .3)) * 100%

40% chance of the first one going off.
30% chance of the second one going off during the time the first one doesn't go off (which is 60% of the time, not 40% of the time).

 

[drinkbeerallday]

just get rid of HLD and HLA all together

 

[RaDian FlGith]

Jeremy,

I'd suggest:


Hit Lower Attack: A successful hit with this weapon lowers the attack rating of the target by 25% for 10 seconds. There is no cap on HLA, but rather, the HLA percentages are multiplied together, and then that result is added to the highest base HLA. For instance, if you have two items, one with a 30% chance, and one with a 50% chance, the percentages are multiplied as .3 and .5, giving an additional HLA chance of .15 or 15%. This 15% is then added to the highest base, in this case, 50%, which gives you a 65% chance to apply the HLA affect.

Hit Lower Defense: {same thing, adjusted for defense...}

 

[pavel.vesely]

It is more like chance not to get effect is multiplied, so formula to get effect is

1 - (1 - a / 100) * (1 - b / 100) * (1 - c / 100) ...

So for example

1 - (1 - 50 / 100) * (1 - 30 / 100) = 1 - 0,5 * 0,7 = 0,65
1 - (1 - 40 / 100) * (1 - 30 / 100) = 1 - 0,6 * 0,7 = 0,58

 

[RaDian FlGith]

It is more like chance not to get effect is multiplied, so formula to get effect is

1 - (1 - a / 100) * (1 - b / 100) * (1 - c / 100) ...

So for example

1 - (1 - 50 / 100) * (1 - 30 / 100) = 1 - 0,5 * 0,7 = 0,65
1 - (1 - 40 / 100) * (1 - 30 / 100) = 1 - 0,6 * 0,7 = 0,58

If that's actually how it works, and we'd have to see it from EA/Mythic, then a clarification needs to be made. As Jeremy explained it, your example of one weapon with 40% and one with 30% would provide a 58% HLA chance, while Jeremy's example/definition only provides a 52% chance.